======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '153'
                                          'artist'  'Benny Carter & Ramblers'
                                     'text_people'  ''
                                         'release'  'Decca Mx AM 369-3 unissued'
                                           'title'  'Blue Rhythm'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '102.5'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Decca Mx AM 369-3 unissued'
'TBPM' (BPM (beats per minute))                     '102.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1937-03-24'
'TIT2' (Title/songname/content description)         'Blue Rhythm'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '153000'
'TPE1' (Lead performer(s)/Soloist(s))               'Benny Carter & Ramblers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.79 dB'
'TXXX:replaygain_track_peak'                        '0.647179'

========================== row from database ==========================
                                              'id'  1471104
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1937/Benny Carter - Blue Rhythm (+ Ramblers) 24-3-1937.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  153
                                           'genre'  prerock-swing
                                        'filesize'  3173631
                                           'mtime'  1620560959
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1937 (+ Ramblers) 24 1937 prerock swing
                                      'tag_artist'  Benny Carter & Ramblers
                                     'tag_release'  Decca Mx AM 369-3 unissued
                                       'tag_title'  Blue Rhythm
                                             'bpm'  102.5
                                    'search_title'  'blue':1 'rhythm':2
                                   'search_artist'  'benny':1 'carter':2 'ramblers':3
                                  'search_release'  '3':5 '369':4 '3693':6 'am':3 'decca':1 'mx':2 'unissued':7
                                     'search_rest'  '00oldiepop':5 '1937':6 '24':9 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':10 'ramblers':7,8 'swing':11
                                    'search_combo'  '00oldiepop':17 '1937':18 '24':21 '3':10C '369':9C '3693':11C 'am':8C 'benny':3B 'blue':1A 'carter':4B 'country':16 'decca':6C 'exotica':14 'jazz':13 'mx':7C 'oldies':15 'prerock':22 'ramblers':5B,19,20 'rhythm':2A 'swing':23 'unissued':12C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560958.8742669  (2021-05-09 13:49:18)
                             'size'  3173631